Annual Report for Fiscal Year Ending 09-30, 2025 (Form 10-K)

Management's Discussion and Analysis of Financial Condition and Results of Operations

The following discussion should be read in conjunction with the consolidated financial statements and notes thereto included elsewhere in this Annual Report on Form 10-K. This Annual Report on Form 10-K, including the following sections, contains forward-looking statements. These statements are subject to risks and uncertainties that could cause actual results and events to differ materially from those expressed or implied by such forward-looking statements. For a detailed discussion of these risks and uncertainties, see Item 1A "Risk Factors" in this Annual Report on Form 10-K. See also "Cautionary Note Regarding Forward-Looking Statements and Industry Data." We caution the reader not to place undue reliance on these forward-looking statements, which reflect management's analysis only as of the date of this Form 10-K. We undertake no obligation to update forward-looking statements, which reflect events or circumstances occurring after the date of this Form 10-K.

Overview

We are a biopharmaceutical company that has developed ONS-5010/LYTENAVATM as the first ophthalmic formulation of bevacizumab approved by the European Commission in the European Union, or EU, and the Medicines and Healthcare products Regulatory Agency, or MHRA, in the United Kingdom, or UK, for use in adults for the treatment of wet age-related macular degeneration, or wet AMD. In June 2025, we launched directly into the initial markets of Germany and the UK. Additionally, our Biologics License Application, or BLA, is currently under review at the United States Food and Drug Administration, or FDA, for the use of ONS-5010/LYTENAVA as a treatment for wet AMD in the United States. If approved in the US., our goal is to also launch directly in the United States as the first and only approved ophthalmic bevacizumab for the treatment of wet AMD. In addition to Europe and the United States, we may seek approval to launc the product in other markets.

Bevacizumab is a full-length, humanized anti-VEGF (Vascular Endothelial Growth Factor) recombinant monoclonal antibody, or mAb, that inhibits VEGF and associated angiogenic activity. Prior to the approval of ONS-5010/LYTENAVA in the EU and UK, bevacizumab had only been approved for use in the treatment of various forms of cancer and had not been optimized for use in the treatment of retina diseases. Because there previously were no approved bevacizumab products for the treatment of retinal diseases in the United States and other major markets, we submitted standard biologic therapeutic applications and are not using the biosimilar drug regulatory pathway that would be required if bevacizumab were an approved drug for the targeted disease. Off-label repackaged bevacizumab is a frequently used first-line anti-VEGF treatment in Europe (approximately 2.8 million injections annually) and the United States (approximately 2.7 million injections annually) based on data compiled from various sources (Citeline (2023), Global Data (2023) and Market Scope (2022); ASRS 2024 Membership Survey; Market Scope 2024 US Retina Quarterly Updates; GlobalData: Age-Related Macular Degeneration: Global Drug Forecast and Market Analysis to 2028 (April 2020)). We believe ONS-5010/LYTENAVA has potential to mitigate risks associated with off-label use of unapproved bevacizumab. We believe there is significant opportunity in Europe with a total anti-VEGF retina market estimated to be approximately $3.6 billion, including approximately 1.52 million treated patients and approximately 8.3 million total anti-VEGF units (Global Data (2023); Market Scope (2022); IQVIA MIDAS data Q3 2023; Graefe's Archive for Clinical and Experimental Ophthalmology (2020) 258:503-511). We similarly see significant opportunity in the United States, with an estimated $8.5 billion total anti-VEGF retina market, where 55% of physician state off-label repackaged bevacizumab is the preferred first-line product. It is estimated that 34% of the total anti-VEGF market is off-label bevacuzimab (new and maintenance therapy) (Citeline (2023); Global Data (2023); Market Scope (2022); ASRS 2024 Membership Survey; Market Scope 2024 US Retina Quarterly Updates; GlobalData: Age-Related Macular Degeneration: Global Drug Forecast and Market Analysis to 2028 (April 2020)). We estimate the global market for anti-VEGF retina to be approximately $16 billion (Citeline (2023), Global Data (2023) and Market Scope (2022)).

In May 2024, the European Commission granted the Marketing Authorization for ONS-5010/LYTENAVA for the treatment of wet AMD in the EU. The decision applied automatically in all 27 EU Member States, and, within 30 days, also to Iceland, Norway and Liechtenstein. In July 2024, the MHRA granted marketing authorization for ONS-5010/LYTENAVA for the treatment of wet AMD in the UK under the new International Recognition Procedure, or IRP, which allows the MHRA to rely on an authorization received for the same product from one of MHRA's specified Reference Regulators, or RRs, when considering an application for marketing authorization in the UK. ONS-

5010/LYTENAVA is the first and only authorized ophthalmic formulation of bevacizumab for use in treating wet AMD in the EU and UK.

Separately, in March 2022, we submitted a BLA to the FDA for ONS-5010/LYTENAVA for the treatment of wet AMD. In May 2022, we voluntarily withdrew our BLA to provide additional information requested by the FDA. We re-submitted the BLA to the FDA for ONS-5010/LYTENAVA in August 2022, and in October 2022, we received confirmation from the FDA that our BLA had been accepted for filing. In August 2023, we received a Complete Response Letter, or CRL, in which the FDA concluded it could not approve the BLA during this review cycle due to several chemical, manufacturing and control, or CMC, issues, open observations from pre-approval manufacturing inspections, and a lack of substantial evidence. At subsequent Type A meetings with the FDA, we learned that the FDA required the completion of an additional adequate and well-controlled clinical trial evaluating ONS-5010/LYTENAVA, as well as additional requested CMC data indicated in the CRL to approve ONS-5010/LYTENAVA for use in wet AMD.

We agreed to conduct an additional adequate and well-controlled clinical trial following discussions with the FDA in support of our BLA for ONS-5010/LYTENAVA. In December 2023, we submitted a Special Protocol Assessment, or SPA, to the FDA for this study (NORSE EIGHT) seeking confirmation that, if successful, it would address the FDA's requirement for a second adequate and well-controlled clinical trial to support our planned resubmission of the ONS-5010/LYTENAVA BLA. In January 2024, we received confirmation that the FDA had reviewed and agreed upon the NORSE EIGHT trial protocol pursuant to the SPA. If the NORSE EIGHT trial is successful, it would satisfy the FDA's requirement for a second adequate and well-controlled clinical trial to address fully the clinical deficiency identified in the CRL. In addition, through a Type A meeting and additional interactions with the FDA, including Type C and Type D meetings, we identified the approaches needed to resolve the CMC comments in the CRL. We believe that we have addressed the open CMC items to help resolve these comments. In November 2024, we reported that ONS-5010/LYTENAVA did not meet the pre-specified non-inferiority endpoint at week 8 set forth in the SPA. However, the data from the trial demonstrated an improvement in vision and the presence of biologic activity, as well as a continued favorable safety profile for ONS-5010/LYTENAVA. Analysis of the complete week 12 data set for NORSE EIGHT provided additional evidence of improvement in vision and biological activity. We resubmitted the BLA for ONS-5010/LYTENAVA in February 2025. On August 27, 2025, we received a second CRL from the FDA. This CRL included only one deficiency, for a lack of substantial evidence of effectiveness. In the CRL, the FDA advised that, because ONS-5010 did not meet the primary efficacy endpoint in NORSE EIGHT, it is recommended that confirmatory evidence of efficacy be submitted to support the application for ONS-5010. Additionally, the FDA reiterated that NORSE TWO met its primary endpoint for effectiveness. Following a September 2025 Type A meeting with the FDA, we resubmitted the ONS-5010/LYTENAVA BLA and have received a Prescription Drug User Fee Act, or PDUFA, goal date of December 31, 2025 for a decision by the FDA. If approved, we expect to receive 12 years of regulatory exclusivity in the United States.

Our BLA and MAA submissions for ONS-5010/LYTENAVA in wet AMD involved three clinical trials, which we refer to as NORSE ONE, NORSE TWO and NORSE THREE. The study design for our clinical program to evaluate ONS-5010/LYTENAVA as an ophthalmic formulation of bevacizumab was reviewed at an end of Phase 2 meeting with the FDA in April 2018, and we filed our investigational new drug application, or IND, with the FDA in the first quarter of calendar 2019. In August 2020, we reported achieving the anticipated safety and efficacy proof-of-concept results from NORSE ONE, a clinical experience study. NORSE TWO was our pivotal Phase 3 clinical trial comparing ONS-5010/LYTENAVA to ranibizumab (LUCENTIS). The topline results reported from NORSE TWO in August 2021 showed that ONS-5010/LYTENAVA met the primary and key secondary endpoints for efficacy with clinically impactful change observed for treated patients. In March 2021, we reported that the results from NORSE THREE showed a positive safety profile for ONS-5010/LYTENAVA.

NORSE EIGHT

As agreed to with the FDA in the SPA, NORSE EIGHT was a randomized, controlled, parallel-group, masked, non-inferiority study of approximately 400 newly diagnosed, wet AMD subjects randomized in a 1:1 ratio to receive 1.25 mg ONS-5010/LYTENAVA or 0.5 mg ranibizumab intravitreal injections. Subjects received injections at Day 0 (randomization), Week 4, and Week 8 visits, with a final follow-up visit at Week 12. The primary endpoint was the mean change in best corrected visual acuity (BCVA) from baseline to week 8. In November 2024, we reported that ONS-

5010/LYTENAVA did not meet the pre-specified non-inferiority endpoint at week 8 set forth in the SPA. The difference in the means between the ONS-5010/LYTENAVA and ranibizumab arms in the NORSE EIGHT trial was -2.257 BCVA letters with a 95% confidence interval of (-4.044, -0.470) while the lower bound of the pre-specified non-inferiority margin in the SPA was -3.5 at a 95% confidence interval; the hypothesis of noninferiority was not met (p>0.025). In the intent-to-treat, or ITT, primary dataset, NORSE EIGHT demonstrated a mean +4.2 letter improvement in BCVA in the ONS-5010/LYTENAVA arm and +6.3 letter improvement in BCVA in the ranibizumab arm. However, the preliminary data from the trial demonstrated an improvement in vision and the presence of biologic activity, as well as a continued favorable safety profile for ONS-5010/LYTENAVA. In January 2025, we reported the complete week 12 data and safety results from NORSE EIGHT, which continued to demonstrate an improvement in vision and the presence of biologic activity, as well as a continued favorable safety profile. At week 12, the difference in the mean between ONS-5010/LYTENAVA and ranibizumab was -1.009 BCVA letters with a 95% confidence interval of (-2.865, 0.848) in the NORSE EIGHT trial. Applying the statistical parameters from the week 8 primary endpoint with the lower bound of the non-inferiority margin at -3.5 with a 95% confidence interval, the noninferiority margin was met at week 12, indicating that the two study arms are not different at this timepoint. In the ITT population, NORSE EIGHT demonstrated a mean 5.5 letter improvement in BCVA in the ONS-5010/LYTENAVA arm and 6.5 letter improvement in BCVA in the ranibizumab arm. Additionally, the change in central retinal thickness, a measure of anatomical response, was similar in both study arms at all three study timepoints. The safety results demonstrated across the full duration of NORSE EIGHT are consistent with previously reported safety results from the NORSE ONE, NORSE TWO, and NORSE THREE clinical trials, with no cases of retinal vasculitis reported in either study arm.

We have also received agreement from the FDA on three SPAs for three additional registration clinical trials for our ongoing Phase 3 program for ONS-5010/LYTENAVA. The agreements reached with the FDA on these SPAs cover the protocols for NORSE FOUR, a registration clinical trial evaluating ONS-5010/LYTENAVA to treat BRVO, and NORSE FIVE and NORSE SIX, two registration clinical trials evaluating ONS-5010/LYTENAVA to treat DME. The timing for initiating these studies has not been determined pending initial FDA approval for wet AMD.

Because there are no approved bevacizumab products for the treatment of retinal diseases in the United States and other major markets, we submitted a standard BLA, and are not using the biosimilar drug development pathway that would be required if Avastin were an approved drug for the targeted diseases. If approved in the United States, we believe ONS-5010/LYTENAVA has potential to mitigate risks associated with off-label use of unapproved bevacizumab. In the United States, 66.3% of retina physicians state off-label repackaged bevacizumab is their most commonly used first-line anti-VEGF (ASRS 2022 Membership Survey Presented at ASRS NY 2022).

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Going Concern Consideration

Through September 30, 2025, we have funded substantially all of our operations with $612.0 million in proceeds from the sale and issuance of our equity and debt securities. We have also received $29.0 million pursuant to our collaboration and licensing agreements through such date . We have not generated material revenue from the sales of any product. During the fiscal year 2025, we recognized revenues of $1.4 million from sales of LYTENAVA in Germany and the UK. Our net loss for the year ended September 30, 2025 was $62.4 million. We also had a net loss of $75.4 million for the year ended September 30, 2024. We anticipate incurring additional losses until such time, if ever, that we can generate significant sales of ONS-5010/LYTENAVA or any other product candidate we may develop.

On May 16, 2023, we entered into an At-the-Market Sales Agreement with BTIG, LLC ("BTIG"), as sales agent (the "BTIG ATM Agreement" or the "BTIG ATM Offering"), under which we may issue and sell shares of our common stock having an aggregate offering price of up to $100.0 million from time to time through BTIG. We incurred financing costs of $0.4 million, which were capitalized and are being reclassified to additional paid in capital on a pro rata basis when we sell common stock under the BTIG ATM Offering. Under the BTIG ATM Agreement, the Company pays BTIG a commission equal to 3.0% of the aggregate gross proceeds of any sales of common stock under the BTIG ATM Agreement. The offering of common stock pursuant to the BTIG ATM Agreement will terminate upon the earlier of (i) the sale of all common stock subject to the BTIG ATM Agreement or (ii) termination of the BTIG ATM Agreement in accordance with its terms. Subsequent to September 30, 2025, we sold 10,227,166 shares of common stock under the BTIG ATM Agreement and generated $14.9 million in net proceeds after paying fees to BTIG and other issuance costs of $0.5 million.

We evaluated whether there are conditions or events, considered in the aggregate, that raise substantial doubt about our ability to continue as a going concern. We do not believe our current cash resources of $8.1 million as of September 30, 2025, together with $14.9 million in net proceeds from the sale of shares of common stock under the BTIG ATM Offering since September 30, 2025, are sufficient to fund our operations through one year from the Form 10-K filing date. These factors raise substantial doubt about our ability to continue as a going concern. We will need to raise substantial additional capital to fund our planned future operations, receive approval for and commercialize ONS-5010/LYTENAVA, commence and continue clinical trials, or develop other product candidates. We plan to finance our future operations with a combination of proceeds from potential licensing and/or marketing arrangements with pharmaceutical companies, the issuance of equity securities and the issuance of additional debt, potential collaborations and revenues from potential future product sales, if any. There are no assurances that we will be successful in obtaining an adequate level of financing for the development and commercialization of ONS-5010/LYTENAVA or any other current or future product candidates. If we are unable to secure adequate additional funding, our business, operating results, financial condition and cash flows may be materially and adversely affected. Our consolidated financial statements do not include any adjustments that might be necessary if we are unable to continue as a going concern.

Collaboration and License Agreements

From time to time, we enter into collaboration and license agreements for the research and development, manufacture and/or commercialization of our products and/or product candidates. These agreements generally provide for non-refundable upfront license fees, development and commercial performance milestone payments, cost sharing, royalty payments and/or profit sharing. We have also licensed rights to our legacy biosimilar product candidates (ONS-3010, ONS-1045 and ONS-1050) in other markets.

Syntone - Private Placement and PRC Joint Venture

In May 2020, we entered into a stock purchase agreement with Syntone, pursuant to which we sold and issued in a private placement in June 2020, 800,000 shares of our common stock at a purchase price of $20.00 per share, for aggregate gross proceeds of $16.0 million. In connection with the entry into the stock purchase agreement, we entered into a joint venture agreement with Syntone's People's Republic of China, or PRC, based-affiliate, pursuant to which we agreed to form a PRC joint venture that is 80% owned by Syntone's PRC-affiliate and 20% owned by us. Upon formation of the PRC joint venture in April 2021, we entered into a royalty-free license with the PRC joint venture for the development, commercialization and manufacture of ONS-5010/LYTENAVA in the greater China market, which includes Hong Kong, Taiwan and Macau.

Selexis SA

In October 2011, we entered into a research license agreement with Selexis whereby we acquired a non-exclusive license to conduct research internally or in collaboration with third parties to develop recombinant proteins from cell lines created in mammalian cells using the Selexis expression technology, or the Selexis Technology. See Note 8 in the Notes to Consolidated Financial Statements in this Annual Report on Form 10-K for additional detail.

Components of Our Results of Operations

Revenues, net

We recognize revenue from sales of a single product, LYTENAVA (bevacizumab gamma), which became available for commercial sale and shipment to patients in the UK and Germany in June 2025.

Cost of revenues

Cost of revenues consists primarily of the cost of inventory sold, which includes direct manufacturing, production and packaging materials for LYTENAVA sales. Prior to receiving authorization to sell LYTENAVA in Europe, we expensed costs associated with manufacturing of LYTENAVA as a component of research and development expense that would have been included in cost of revenues.

Research and development expenses

Research and development expense consists of expenses incurred in connection with the discovery and development of our product candidates. We expense research and development costs as incurred. These expenses include:

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The successful development of our product candidates is highly uncertain. At this time, we cannot reasonably estimate or know the nature, timing and costs of the efforts that will be necessary to complete the remainder of the development of, or when, if ever, material net cash inflows may commence from any of our other product candidates. This uncertainty is due to the numerous risks and uncertainties associated with the duration and cost of clinical trials, which vary significantly over the life of a project as a result of many factors, including:

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Our expenditures are subject to additional uncertainties, including the terms and timing of regulatory approvals. We may never succeed in achieving regulatory approval for any of our biosimilar product candidates. We may obtain unexpected results from our clinical trials. We may elect to discontinue, delay or modify clinical trials of some product candidates or focus on others. A change in the outcome of any of these variables with respect to the development of a product candidate could mean a significant change in the costs and timing associated with the development of that product candidate. For example, if the FDA or other regulatory authorities were to require us to conduct clinical trials beyond those that we currently anticipate, or if we experience significant delays in enrollment in any of our clinical trials, we could be required to expend significant additional financial resources and time on the completion of clinical development. Full product commercialization will take several years and millions of dollars in additional costs.

Research and development activities are central to our business model. Product candidates in later stages of clinical development generally have higher development costs than those in earlier stages of clinical development, primarily due to the increased size, complexity and duration of later-stage clinical trials.

Selling, general and administrative expenses

Selling, general and administrative expenses consist principally of distribution expenses, salaries and related costs for personnel in executive, administrative, finance and legal functions, including stock-based compensation, travel expenses and recruiting expenses. Other general and administrative expenses include facility related costs, patent filing and prosecution costs and professional fees for business development, legal, auditing and tax services and insurance costs.

Following the launch of our product in Germany and the UK, we have incurred additional expenses related to commercial operations, including sales and marketing activities in these regions. We anticipate that our general and administrative expenses will continue to increase as we expand our commercial presence and support ongoing operations in these markets, and as we prepare for potential launches in additional territories.

Loss on equity method investment

Loss on equity method investment represents our proportionate share for the period of the net loss of our investee to which the equity method of accounting is applied. We account for equity investments where we own a non-controlling interest, but have the ability to exercise significant influence, under the equity method of accounting.

Interest income

The interest income is earned from short term investments primarily money market investments.

Interest expense

Interest expense consists of cash paid and non-cash interest expense related to our December 2022 Note and March 2025 Note. The interest expense was associated with the fees incurred for extending the debt and original issue discount and debt issuance costs that were written off upon election to fair value and accounted for as interest.

Loss from change in fair value of promissory notes

The change in fair value relates to convertible promissory notes that we elected to account for at fair value. As permitted under ASC 825, we elected the fair value option to account for our convertible promissory notes. We recorded the convertible promissory note at fair value with changes in fair value recorded in the consolidated statements of operations.

Warrant related expenses

The warrant related expense relates to the excess of the fair value of the warrants upon issuance over the proceeds of the private placements that closed on March 18, 2024 and April 15, 2024.

Warrant inducement expenses

The warrant inducement expenses are composed of the remeasurement charges for existing warrants that were exercised in a warrant inducement transaction, which were exercised at a modified, reduced exercise price. Additionally, this expense includes the fair value of the inducement warrants that were issued concurrently with the exercise of the existing warrants.

Gain from change in fair value of warrant liability

We issued warrants to purchase our common stock in conjunction with convertible senior secured notes issued pursuant to a certain Note and Warrant Purchase Agreement dated December 22, 2017. Additionally, we issued warrants in connection with private placements that closed on March 18, 2024 and April 15, 2024. These warrants are categorized as liabilities and recorded at fair value. The warrants are subject to re-measurement at each balance sheet date, and we recognize any change in fair value in our statements of operations.

Income taxes

During the year ended September 30, 2025, we recorded a $1.6 million tax benefit related to previously recognized foreign withholding taxes associated with our collaboration and licensing agreements.

Since inception, we have not recorded any United States federal or state income tax benefits (excluding the sale of New Jersey state NOLs and research credits) for the net losses we have incurred in each year or on our earned research and development tax credits, due to our uncertainty of realizing a benefit from those items. As of September 30, 2025, we had

federal and state NOL carryforwards of $441.0 million and $243.6 million, respectively, that will begin to expire in 2030 and 2039, respectively. As of September 30, 2025, we had federal foreign tax credit carryforwards of $0.1 million available to reduce future tax liabilities, which begin to expire starting in 2024. As of September 30, 2025, we also had federal and state research and development tax credit carryforwards of $11.6 million and $0.8 million, respectively, that will begin to expire in 2032 and 2033, respectively.

In general, under Section 382 of the Internal Revenue Code of 1986, as amended, or the Code, a corporation that undergoes an "ownership change" is subject to limitations on its ability to utilize its NOLs to offset future taxable income. We have not completed a study to assess whether an ownership change has occurred in the past. Our existing NOLs may be subject to limitations arising from previous ownership changes, and if we undergo an ownership change in connection with or after our IPO, our ability to utilize NOLs could be further limited by Section 382 of the Code. Future changes in our stock ownership, some of which are outside of our control, could result in an ownership change under Section 382 of the Code. Our NOLs are also subject to international regulations, which could restrict our ability to utilize our NOLs.

Furthermore, our ability to utilize NOLs of companies that we may acquire in the future may be subject to limitations. There is also a risk that due to regulatory changes, such as suspensions on the use of NOLs, or other unforeseen reasons, our existing NOLs could expire or otherwise be unavailable to offset future income tax liabilities.

On July 4, 2025, the One Big Beautiful Bill Act, or the OBBBA, was enacted in the United States. The legislation includes significant corporate tax reforms, including the permanent reinstatement of the ability to deduct domestic research and development expenditures as incurred beginning in fiscal 2026, replacing the previous requirement to capitalize and amortize such expenditures over five years. The OBBBA also introduces modifications to the international tax framework, including changes to the foreign-derived intangible income, orFDII, regime. Under the legislation, FDII is renamed foreign-derived deduction-eligible income, or FDDEI, with the current FDDEI effective tax rate of 13% maintained through fiscal 2026, followed by a permanent adjustment to a 14% rate beginning in fiscal 2027 (compared to 16% under prior law). The legislation contains multiple effective dates, with certain provisions effective in 2025 and others becoming effective in subsequent years. The effects of OBBBA are not expected to have a material impact relative the financial statements of the Company.

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Segment reporting

We operate in a single reportable segment focused on the development and commercialization of ONS-5010/LYTENAVA™, an ophthalmic formulation of bevacizumab for treating wet AMD. Our Chief Executive Officer serves as the chief operating decision maker, or CODM, and manages our operations on a consolidated basis.

Our segment's accounting policies align with those outlined in the summary of significant accounting policies. To date, we have generated minimal product revenue and expect to continue incurring significant expenses and operating losses as we advance product candidates through development, clinical trials, and regulatory review.

The CODM evaluates segment performance based on net loss, as reported in our consolidated statements of operations, and uses budget-to-forecast comparisons and cash flow models to guide decision-making. Segment assets are reported as total assets on our consolidated balance sheet.

Results of Operations

Comparison of Years Ended September 30, 2025 and 2024

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Revenues, net

During the year ended September 30, 2025, we recognized revenues of $1.4 million from sales of LYTENAVA in Germany and the UK. This revenue represents the initial shipments of product into Germany and the UK during the year.

Cost of revenues

Cost of revenues for the year ended September 30, 2025, were $1.4 million, consisting primarily of the cost of inventory sold, which includes direct manufacturing, production and packaging materials for LYTENAVA sales. It also includes charges recorded to reduce the carrying amount of our inventory to its net realizable value resulting from obsolete and excess inventory based on sales forecasts and expiry dates from initial shipment. Prior to receiving regulatory approval for LYTENAVA for the treatment of wet AMD by the European Commission in the EU and the MHRA in the UK, inventory and related manufacturing costs were recognized as research and development expenses. The research and development expenses that would have been classified as cost of revenues for the year ended September 30, 2025 were $0.6 million.

Research and development expenses

The following table summarizes our research and development expenses by functional area for the years ended September 30, 2025 and 2024:

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Research and development expenses for the year ended September 30, 2025 decreased by $14.6 million compared to the year ended September 30, 2024. This reduction was primarily attributable to a $14.1 million decrease in ONS-5010/LYTENAVA development expenses associated with the NORSE EIGHT clinical trial, which was completed in September 2024.

Selling, general and administrative expenses

The following table summarizes our general and administrative expenses by type for the years ended September 30, 2025 and 2024:

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Selling, general and administrative expenses for the year ended September 30, 2025 increased by $10.0 million compared to the year ended September 30, 2024. This increase was due to an increase of $8.4 million in launch related expenses for LYTENAVA in Europe, an increase of $5.8 million in combined cash and stock-based compensation, which was primarily related to severance costs from the departure of our former Chief Executive Officer and Chief Commercial Officer and our December 2024 and September 2025 reductions in headcount. These increases were partially offset by a $3.7 million reduction in professional fees and $0.4 million decrease in other selling, general and administration expenses driven by ongoing efforts to reduce expenditures unrelated to launch costs.

Loss on equity method investment

Loss on equity method investment represents our share of the loss from Beijing Syntone Biopharma Ltd, or Syntone JV.

Interest income

Interest income for the year ended September 30, 2025 and 2024 was earned from short term investments, primarily consisting of money market investments.

Interest expense

Interest expense for the year ended September 30, 2025 decreased by $2.9 million compared to prior year. The decrease was primarily attributable to convertible promissory note maturity extension fees of $3.2 million associated with the unsecured promissory note issued on December 22, 2022, or the December 2022 Note, incurred in prior year.

Loss from change in fair value of promissory notes

The change in fair value relates to the convertible promissory notes that we elected to account for at fair value. As permitted under ASC 825, we elected the fair value option to account for our convertible promissory notes. We record the convertible promissory notes at fair value with changes in fair value recorded in the consolidated statements of operations. The increase in the loss recognized from the change in fair value of promissory notes reflects an increase in the fair value of the convertible promissory notes, attributable to a lower conversion price on the March 2025 Note, higher volatility assumptions, and a reduced remaining term.

Warrant related expenses

During the year ended September 30, 2024, we recognized charges associated with warrants issued during the period, which were categorized as liabilities. The warrant related charges amounted to the difference between the fair value of the warrants and the net proceeds received from private placements that closed on March 18, 2024 and April 15, 2024.

Warrant inducement expenses

During the year ended September 30, 2025, we recognized inducement charges associated with warrants exercised in the year. For further details on warrant inducement transaction refer to Note 10 in the Notes to Consolidated Financial Statements in this Annual Report on Form 10-K for additional detail.

Gain from change in fair value of warrant liability

We recognized income related to the decrease in the fair value of our common stock warrant liability in both fiscal years 2025 and 2024. This income was attributed to a decline in the price of our common stock during those periods. In fiscal year 2024, we recorded income of $43.0 million, compared to $38.6 million in fiscal year 2024. We issued warrants to purchase our common stock in conjunction with convertible senior secured notes issued pursuant to a certain Note and Warrant Purchase Agreement dated December 22, 2017. Additionally, we issued warrants in connection with private placements that closed on March 18, 2024 and April 15, 2024. These warrants are categorized as liabilities and recorded at fair value. The warrants are subject to re-measurement at each balance sheet date, and we recognize any change in fair value in our statements of operations. The gain recorded during the period was primarily due to the reduction in our stock price per share of common stock during the year.

Liquidity and Capital Resources

We have one product, LYTENAVA, approved for commercialization in the EU and the UK, but we have not yet generated material revenue from its sales or from the sales of any other product. Since inception, we have incurred net losses and negative cash flows from our operations. Through September 30, 2025, we have funded substantially all of our operations with $612.0 million in net proceeds from the sale and issuance of our equity securities, debt securities and borrowings under debt facilities.

We anticipate incurring additional losses until such time, if ever, that we can generate significant sales of ONS-5010/LYTENAVA or any other product candidate we may develop. We will need substantial additional financing to fund our operations and to commercially launch ONS-5010/LYTENAVA or any other product candidate we may develop. Management is currently evaluating various strategic opportunities to obtain the required funding for future operations. These strategies may include but are not limited to payments from potential strategic research and development, licensing and/or marketing arrangements with pharmaceutical companies, private placements and/or public offerings of equity and/or debt securities. Alternatively, we will be required to, among other things, make reductions in our workforce, scale back our plans and place certain activities on hold, discontinue our development programs, liquidate all or a portion of our assets, and/or seek protection under the provisions of the United States Bankruptcy Code.

On December 22, 2022, we entered into a Securities Purchase Agreement and issued an unsecured convertible promissory note with a face amount of $31.8 million, or the December 2022 Note, to Streeterville Capital, LLC, or the Lender, who was the holder of our November 2021 Note. The December 2022 Note had an original issue discount of $1.8 million. A portion of the proceeds from the December 2022 Note was used to repay in full the remaining outstanding principal and accrued interest on the November 2021 Note, which was cancelled upon repayment. We received net proceeds of $18.1 million upon the closing on December 28, 2022, after deducting the Lender's transaction costs in connection with the issuance and November 2021 Note repayment. In December 2023, we extended the maturity of the December 2022 Note from January 1, 2024, to April 1, 2024. We incurred a $475,000 extension fee. The December 2022 Note bore interest at 9.5% per annum through April 1, 2024. On January 22, 2024, we entered into an amendment to the December 2022 Note, or the Note Amendment, with the Lender, which became effective on April 1, 2024, after the satisfaction of certain closing conditions, including various required stockholder approvals and the closing of the private placement that closed on March 18, 2024. The maturity of the December 2022 Note was extended to July 1, 2025. An extension fee of $2.7 million

(calculated as 7.5% of the outstanding balance of the December 2022 Note) was added to the outstanding balance on March 18, 2024. Under the Note Amendment, the initial conversion price with respect to $15.0 million in aggregate principal amount of the December 2022 Note was changed to $7.00, the price per share in the private placement that closed on March 18, 2024, and the remaining aggregate principal amount was converted at a price of $40.00 per share. Effective April 1, 2024, the December 2022 Note bore interest at the prime rate (as published in the Wall Street Journal) plus 3% (subject to a floor of 9.5%), and we had an obligation to repay at least $3.0 million (by either cash or conversion into common stock) of the outstanding balance of the December 2022 Note for each calendar quarter beginning with the second calendar quarter of 2024 (subject to adjustment for conversions by the Lender and to payment of an exit fee as set forth in the December 2022 Note) and continuing until the December 2022 Note was repaid in full. During the year ended September 30, 2024, an aggregate of principal and accrued interest totaling $11.3 million of the December 2022 Note was converted into 1,607,093 shares of our common stock. On March 13, 2025, we used the proceeds from the March 2025 Note (as defined below) to pay off the December 2022 Note.

On May 16, 2023, we entered into an At-the-Market Sales Agreement with BTIG, LLC, or BTIG, as sales agent, as amended, the ATM Agreement or the ATM Offering, under which we may issue and sell shares of our common stock having an aggregate offering price of up to $100.0 million from time to time through BTIG. Under the ATM Agreement, we pay BTIG a commission equal to 3.0% of the aggregate gross proceeds of any sales of common stock under the ATM Agreement. The offering of common stock pursuant to the ATM Agreement will terminate upon the earlier of (i) the sale of all common stock subject to the ATM Agreement or (ii) termination of the ATM Agreement in accordance with its terms. During the year ended September 30, 2025, we sold 8,681,852 shares of common stock under the ATM Offering and generated approximately $13.5 million in net proceeds after paying fees to BTIG and other issuance costs of $0.4 million. No shares of common stock were sold under the ATM Offering. Subsequent to September 30, 2025, we sold 10,227,166 shares of common stock under the BTIG ATM Agreement and generated $14.9 million in net proceeds after paying fees to BTIG and other issuance costs assessed as immaterial.

In March 2024, in a private placement pursuant to a securities purchase agreement entered into in January 2024 with certain institutional and accredited investors, including GMS Ventures, our largest stockholder, we issued an aggregate of 8,571,423 shares of common stock and warrants to purchase an aggregate of 12,857,133 shares of common stock at a purchase price per share of $7.00 per share and accompanying warrant to purchase one and one-half shares of common stock for $55.5 million in net proceeds after payment of placement agent fees and other offering costs. GMS Ventures purchased an aggregate of 2,305,714 shares of common stock and warrants to purchase an aggregate of 3,458,571 shares of common stock in the private placement. The warrants have an exercise price of $7.70 per share of common stock and will expire on March 18, 2029.

On April 15, 2024, in a private placement with Syntone Ventures, LLC pursuant to a securities purchase agreement entered into in January 2024, we issued 714,286 shares of common stock and accompanying warrants to purchase 1,071,429 shares of common stock for $4.8 million in gross proceeds on substantially the same terms as those in the private placement closed in March 2024. The warrants have an exercise price of $7.70 per share of common stock and will expire on April 15, 2029.

On January 16, 2025, we entered into warrant inducement offer letter agreements, or the Warrant Inducement Transaction, with GMS Ventures and Investments, or GMS, and certain other holders of existing warrants to purchase our common Stock, or Existing Warrants, pursuant to which the holders agreed to exercise their Existing Warrants for an aggregate of 7,074,637 shares of common stock at a reduced exercise price of $2.51 per share. In exchange, we issued two inducement warrants for each Existing Warrant exercised, which are exercisable for an aggregate of up to 14,149,274 shares of common stock at an exercise price of $2.26 per share. We received net proceeds of $16.6 million, after capital markets advisory fees and offering costs.

Concurrently with the Warrant Inducement Transaction, we entered into the Syntone Warrant Inducement Transaction, pursuant to which Syntone agreed to exercise the Existing Syntone Warrants for an aggregate of 1,071,429 shares of common stock at a reduced exercise price of $2.51 per share. In exchange, we agreed to issue two Syntone Inducement Warrants for each existing warrant exercised, which will be exercisable for up to 2,142,858 Syntone Inducement Warrant Shares at an exercise price of $2.26 per share. The closing of the Syntone Warrant Inducement Transaction is subject to receipt of regulatory approval. We expect to generate net proceeds of approximately $2.4 million after capital markets

advisory fees and estimated offering costs. As of the date of this filing, Syntone has not received regulatory approval and, thus, we have not yet received the proceeds from the exercise of the Existing Syntone Warrants, and the Syntone Inducement Warrants have not been issued. There can be no assurance that Syntone will receive the requisite regulatory approval in the near term or at all, and we may never receive the proceeds from the exercise of the Existing Syntone Warrants, or issue, or receive proceeds from the exercise of, the Syntone Inducement Warrants.

On March 13, 2025, we issued an unsecured convertible promissory note for $33.1 million, or the March 2025 Note, to Avondale Capital, LLC, or Avondale, pursuant to a Securities Purchase Agreement, or the Avondale SPA, dated January 31, 2025. Certain terms of the March 2025 Note were approved at our annual meeting of stockholders on March 11, 2025, and we used the proceeds from the March 2025 Note to pay off the December 2022 Note. For a description of the Avondable SPA and the March 2025 Note, see "Description of Indebtedness" below. During the year ended September 30, 2025, Avondale converted $2.5 million of principal and accrued interest on the March 2025 Note into shares of common stock and we made cash payments totaling $3.5 million. These transactions constituted payments toward the Quarterly Debt Reduction Obligations during the year ended September 30, 2025.

On May 27, 2025, we completed an underwritten public offering, or the Public Offering, of 9,285,714 shares of common stock and warrants to purchase an aggregate of 18,571,428 shares of common stock pursuant to an underwriting agreement, dated May 22, 2025, between us and BTIG, LLC. The combined price for each share of common stock and accompanying warrant to purchase two shares of common stock was $1.40. We received aggregate net proceeds of $11.6 million after payment of placement agent fees and other offering costs. GMS purchased an aggregate of 4,285,714 shares of common stock and warrants to purchase an aggregate of 8,571,428 shares of common stock in the Public Offering. The warrants have an exercise price of $1.40 per share of common stock and will expire on May 27, 2030.

We evaluated whether there are conditions or events, considered in the aggregate, that raise substantial doubt about our ability to continue as a going concern. As of September 30, 2025, we had an accumulated deficit of $605.7 million, a working capital deficit and $31.5 million of principal, accrued interest and exit fees due under an unsecured convertible promissory note issued in March 2025, maturing on July 1, 2026. We do not believe our current cash resources of $8.1 million, together with $14.9 million in net proceeds from the sale of shares of common stock under the ATM Offering since September 30, 2025, are sufficient to fund our operations through one year from the Form 10-K filing date. These factors raise substantial doubt about our ability to continue as a going concern. Our consolidated financial statements do not include any adjustments related to the recoverability and classification of recorded asset amounts or the amounts and classification of liabilities that might result from the outcome of this uncertainty. We anticipate incurring additional losses until such time, if ever, that we can generate significant sales of ONS-5010/LYTENAVA or any other product candidate we may develop. We will need substantial additional financing to fund our operations and to commercially develop ONS-5010/LYTENAVA or any other product candidate we may develop. Management is currently evaluating various strategic opportunities to obtain the required funding for future operations. These strategies may include but are not limited to payments from potential strategic research and development, licensing and/or marketing arrangements with pharmaceutical companies, private placements and/or public offerings of equity and/or debt securities. There can be no assurance that these future funding efforts will be successful. Alternatively, we will be required to, among other things, make reductions in our workforce, scale back our plans and place certain activities on hold, discontinue our development programs, liquidate all or a portion of our assets, and/or seek protection under the provisions of the United States Bankruptcy Code.

Our future operations are highly dependent on a combination of factors, including (i) the timely and successful completion of additional financing discussed above, (ii) our ability to complete revenue-generating partnerships with pharmaceutical companies, (iii) the success of our research and development, (iv) the development of competitive therapies by other biotechnology and pharmaceutical companies, and, ultimately, (v) regulatory approval and market acceptance of our proposed future products.

While we expect that the majority of the cash payments related to the workforce reduction in September 2025 will be substantially complete by the third calendar quarter of 2026, we may incur other charges or cash expenditures not currently contemplated due to unanticipated events that may occur, including in connection with the implementation of the workforce reduction. Additionally, we may not achieve the expected benefits of these cost reduction measures and other

cost reduction plans on the anticipated timeline, or at all, which could otherwise accelerate our liquidity needs and could force us to further curtail or suspend our operations.

Cash Flows

The following table summarizes our cash flows for each of the years presented:

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Operating Activities

During the year ended September 30, 2025, we used $51.8 million of cash in operating activities resulting primarily from our net loss of $62.4 million. This use of cash was partially offset by $5.7 million of non-cash items such as stock-based compensation, loss from change in fair value of promissory notes, warrant inducement expenses, gain from change in fair value of warrant liability, loss on equity method investment and amortization expense. The net cash inflow of $4.9 million from changes in our operating assets and liabilities was primarily due to a decrease in prepaid expenses of $8.0 million associated mainly with ONS-5010/LYTENAVA development costs relating to clinical trial and drug development costs, and an increase in accounts payable and accrued expenses of $3.4 million, primarily due to timing of payments, partially offset by a decrease in income taxes payable of $1.6 million, an increase in inventory of $3.3 million relating to commercial inventory manufactured during the period and accounts receivable of $1.5 million.

During the year ended September 30, 2024, we used $68.8 million of cash in operating activities resulting primarily from our net loss of $75.4 million. This use of cash was partially offset by $9.6 million of non-cash items such as stock-based compensation, non-cash interest expense, change in fair value of promissory notes, warrant related expense, change in fair value of warrant liability, loss on equity method investment and depreciation and amortization expense. The net cash outflow of $3.0 million from changes in our operating assets and liabilities was primarily due to an increase in prepaid expenses of $4.9 million for timing of payments associated with ONS-5010/LYTENAVA development costs relating to clinical trial and drug development costs partially offset by an increase in accounts payable and accrued expenses of $1.9 million due to professional fees associated with our EU launch activities.

Financing Activities

During the year ended September 30, 2025, net cash provided by financing activities totaled $45.0 million. The primary sources of these funds included $33.1 million in net proceeds from the issuance of the March 2025 Note, $16.8 million from the exercise of common stock warrants related to the Warrant Inducement Transaction with GMS and other holders of Existing Warrants and $5.8 million from exercise of other common stock warrants, $11.9 million from the Public Offering, and $13.5 million from sales of common stock under the ATM Offering. The proceeds from the March 2025 Note were utilized to fully repay the December 2022 Note, with a payment of $32.9 million. In addition, the Company made cash debt repayments totaling $3.2 million on the March 2025 Note during the year.

During the year ended September 30, 2024, net cash provided by financing activities was $60.3 million, primarily attributable to $60.3 million in net proceeds from private placements in March 2024 and April 2024 of an aggregate of 9,285,709 shares of our common stock and warrants to purchase an aggregate of 13,928,562 shares of our common stock.

Description of Indebtedness

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On March 13, 2025, we issued the March 2025 Note for $33,100,000 to Avondale pursuant to the Avondale SPA. Certain terms of the March 2025 Note were approved at our annual meeting of stockholders on March 11, 2025, and we used the proceeds from the March 2025 Note to pay off the December 2022 Note. On March 28, 2025, we filed a registration statement registering the resale of common stock issuable upon conversion of the March 2025 Note. The March 2025 Note

will initially bear interest at the prime rate as published in the Wall Street Journal, plus an additional 3%, subject to a floor of 9.5%. The March 2025 Note is scheduled to mature on July 1, 2026, and will be convertible into common stock. We are obligated to repay a minimum of $3,000,000 of the outstanding balance of the March 2025 Note each calendar quarter starting with the second calendar quarter of 2025, subject to adjustments for conversions by Avondale and the payment of an exit fee of 7.5%, or the Quarterly Debt Reduction Obligations. Any amount converted by Avondale during a given calendar quarter in excess of the Quarterly Debt Reduction Obligations will be credited toward meeting the Quarterly Debt Reduction Obligations for the next quarter or quarters.

Avondale has the right to convert all or any portion of the outstanding balance under the March 2025 Note into shares of common stock, calculated by dividing the amount of the March 2025 Note being converted by the Conversion Price (as defined below). Furthermore, we retain the right to convert any portion of the outstanding balance under the March 2025 Note into shares of common stock at the Conversion Price, provided certain conditions are met at the time of conversion, including, but not limited to, the condition that the daily volume-weighted average price of our common stock on Nasdaq equals or exceeds $3.00 per share (subject to adjustments for stock splits and combinations) for a period of 30 consecutive trading days, and that the median daily dollar trading volume during the preceding 30 trading day period meets or exceeds $1,000,000. We reserve the right to make payments (i) in cash, (ii) in shares of common stock, calculated as the applicable payment amount divided by the Conversion Price, or (iii) a combination of both cash and shares of common stock. Any cash payments made by us, including prepayments or payments made at maturity, will incur an additional fee of 7.5%.

The March 2025 Note stipulates that we shall not permit any conversion of the March 2025 Note if, following such conversion, Avondale and its affiliates would beneficially own shares of common stock exceeding 4.99% of the total number of outstanding shares as of that date, or the Beneficial Ownership Limitation. However, this limitation shall increase to 9.99% when our market capitalization falls below $25,000,000. Avondale may, by written notice to us, adjust the Beneficial Ownership Limitation for itself, though any such adjustment will not take effect until the 61st day after such notice is received.

In the event of specific occurrences outlined in the March 2025 Note-such as our failure to fulfill payment obligations, non-compliance with the Quarterly Debt Reduction Obligations, insolvency or bankruptcy events, breaches of covenants in the Avondale SPA and the March 2025 Note, and unauthorized transactions without Avondale's consent, collectively referred to as Trigger Events-Avondale reserves the right to increase the balance of the March 2025 Note by 10% in the case of a Major Trigger Event (as defined in the March 2025 Note) and by 5% for a Minor Trigger Event (as defined in the March 2025 Note). Should any Trigger Event persist without resolution for ten trading days following written notification from Avondale, this will constitute an event of default, such event, an Event of Default. Upon an Event of Default, Avondale may accelerate the March 2025 Note, resulting in all amounts becoming immediately due and payable, with interest accruing at a rate of 22% per annum until full payment is made.

Under the terms of the March 2025 Note, the "Conversion Price" is defined as $2.26 per share prior to a Major Trigger Event (subject to adjustments for stock splits and combinations). Following a Major Trigger Event, the Conversion Price will be the lesser of (i) $2.26 per share (subject to adjustments) or (ii) 90% of the lowest closing bid price over the three trading days preceding the conversion notice. Furthermore, if the Conversion Price falls below $0.404 per share (subject to adjustments), we will be required to fulfill a conversion notice from Avondale in cash.

Funding Requirements

We plan to focus in the near term on supporting the review of our BLA submission for ONS-5010/LYTENAVA with the FDA and to prepare for the potential launch of ONS-5010/LYTENAVA to support the generation of commercial revenues. We anticipate we will incur net losses and negative cash flow from operations for the foreseeable future. We may not be able to initiate commercialization of ONS-5010/LYTENAVA if, among other things, the FDA does not approve our BLA when we expect, or at all, or if we are not able to secure sufficient funding of our expected post-launch commercial costs.

Our primary uses of capital are, and we expect will continue to be, compensation and related expenses, manufacturing and facility costs, external research and development services, laboratory and related supplies, legal and other regulatory expenses, and administrative and overhead costs. Our future funding requirements will primarily depend on the resources needed to support the commercialization and continued development of our lead product candidate, as well as any additional candidates we choose to advance. Following the launch of our product in Germany and the United Kingdom, we have experienced higher expenses related to commercial operations, including sales and marketing activities in those markets. We anticipate that general and administrative expenses will continue to increase as we expand our commercial infrastructure, sustain operations in these regions, and prepare for potential launches in additional territories.

We do not believe our existing cash and cash equivalents of $8.1 million as of September 30, 2025, together with $14.9 million in net proceeds from the sale of shares of common stock under the ATM Offering since September 30, 2025, are sufficient to fund our operations through one year from the Form 10-K filing date. We have based this estimate on assumptions that may prove to be wrong, and we could utilize our available capital resources sooner than we expect. We plan to finance our future operations with a combination of proceeds from potential strategic collaborations, sale of the development and commercial rights to our drug product candidates, the issuance of equity securities, the issuance of additional debt, and revenues from potential future product sales, if any. If we raise additional capital through the sale of equity or convertible debt securities, your ownership will be diluted, and the terms of these securities may include liquidation or other preferences that adversely affect your rights as a holder of our common stock. Further, due to current market volatility, we may be unable to raise additional funds or enter into such other arrangements when needed on favorable terms or at all. There are no assurances that we will be successful in obtaining an adequate level of financing for the commercialization of ONS-5010/LYTENAVA or the development of any other current or future product candidates. Alternatively, we will be required to, among other things, modify our clinical trial plans for ONS-5010/LYTENAVA in additional indications, make reductions in our workforce, scale back our plans and place certain activities on hold, discontinue our development programs, liquidate all or a portion of our assets, and/or seek protection under the provisions of the United States Bankruptcy Code.

Because of the numerous risks and uncertainties associated with research, development and commercialization of pharmaceutical products, we are unable to estimate the exact amount of our working capital requirements. Our future funding requirements will depend on many factors, including:

See Item 1A "Risk Factors" for additional risks associated with our substantial capital requirements.

Critical Accounting Policies and Significant Judgments and Estimates

Our consolidated financial statements are prepared in accordance with United States generally accepted accounting principles, or GAAP. The preparation of our consolidated financial statements and related disclosures requires us to make estimates and judgments that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the consolidated financial statements, and the reported amounts of revenues and expenses during the reported period. We base our estimates on historical experience, known trends and events and various other factors that we believe to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. We evaluate our estimates and assumptions on an ongoing basis. Our actual results may differ from these estimates under different assumptions and conditions.

While our significant accounting policies are described in more detail in the notes to our audited consolidated financial statements appearing elsewhere in this Annual Report on Form 10-K we believe that the following accounting policies are those most critical to the judgments and estimates used in the preparation of our consolidated financial statements.

Revenue Recognition

We recognize revenue from sales of a single product, LYTENAVA (bevacizumab gamma), or the Product, in accordance with ASC Topic 606 - Revenue from Contracts with Customers. Our revenue recognition analysis consists of the following steps: (i) identification of the promised goods in the contract; (ii) determination of whether the promised goods are performance obligations, including whether they are capable of being distinct; (iii) measurement of the transaction price, including the constraint on variable consideration; (iv) allocation of the transaction price to the performance obligations; and (v) recognition of revenue as we satisfy each performance obligation.

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LYTENAVA (bevacizumab gamma) became available for commercial sale and shipment to patients in Europe in fiscal year 2025. We sell the Product to several customers who are pharmaceutical wholesalers/distributors (the "Customers") who in turn sell the Product directly to clinics, hospitals, and pharmacies. Revenue is recognized as the Product is physically delivered to the customers.

The transaction price that we recognize for LYTENAVA (bevacizumab gamma) revenue is our gross product sales reduced by our corresponding gross-to-net, or GTN, estimates using the expected value method, resulting in our reported "Revenues, net" in the accompanying Consolidated Statements of Operations. Revenues, net reflects the amount we ultimately expect to realize in net cash proceeds, taking into account our current period gross sales and related cash receipts, and the subsequent cash disbursements on these sales that we estimate for the various GTN categories discussed below. The GTN estimates are based upon information received from external sources, such as written or oral information obtained from customers with respect to their period-end inventory levels and sales to end-users during the period, in combination with management's informed judgments. Due to the inherent uncertainty of these estimates, the actual amount of product returns, rebates and distribution fees may be materially above or below the amount estimated. The variance between actual amounts and estimated amounts may result in prospective adjustments to the reported net revenues.

Each of the GTN estimate categories are discussed below:

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Research and Development Expenses

As part of the process of preparing our consolidated financial statements, we are required to estimate our prepaid and accrued research and development expenses. This process involves reviewing open contracts and purchase orders, communicating with our applicable personnel to identify services that have been performed on our behalf and estimating the level of service performed and the associated cost incurred for the service when we have not yet been invoiced or otherwise notified of actual costs. The majority of our service providers require advance payments; however, some invoice us in arrears for services performed, on a pre-determined schedule or when contractual milestones are met. We make estimates of our prepaid expenses and accrued expenses as of each balance sheet date in the consolidated financial statements based on facts and circumstances known to us at that time. We periodically confirm the accuracy of the estimates with the service providers and make adjustments if necessary. Examples of estimated prepaid and accrued research and development expenses include fees paid to:

We base our expenses related to preclinical studies and clinical trials on our estimates of the services received and efforts expended pursuant to quotes and contracts with multiple research institutions and CROs that conduct and manage preclinical studies and clinical trials on our behalf. The financial terms of these agreements are subject to negotiation, vary from contract to contract and may result in uneven payment flows. In many instances payments made to our vendors will exceed the level of services provided and result in a prepayment of the expense. Payments under some of these contracts depend on factors such as the successful enrollment of patients and the completion of clinical trial milestones. In recognizing service fees, we estimate the time period over which services will be performed and the level of effort to be expended in each period. If the actual timing of the performance of services or the level of effort varies from the estimate, we adjust the accrual or prepaid accordingly. Although we do not expect our estimates to be materially different from amounts actually incurred, our understanding of the status and timing of services performed relative to the actual status and timing of services performed may vary and may result in reporting amounts that are too high or too low in any particular period. To date, we have not made any material adjustments to our prior estimates of prepaid and accrued research and development expenses.

Recently Issued Accounting Pronouncements

In November 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures. ASU 2023-07, which is applicable to entities with a single reportable segment and will primarily require enhanced disclosures about significant segment expenses and enhanced disclosures in interim periods. We adopted ASU 2023-07 during fiscal year 2025, as the standard became effective for public entities for fiscal years beginning after December 15, 2023. For further details regarding the adoption and its impact, Note 3 in the Notes to Consolidated Financial Statements in this Annual Report on Form 10-K for additional detail.

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. ASU 2023-09 which is intended to improve income tax disclosure requirements by requiring (1) consistent categories and greater disaggregation of information in the rate reconciliation and (2) the disaggregation of income taxes paid by jurisdiction. The guidance makes several other changes to the income tax disclosure requirements. The guidance in ASU 2023-09 will be effective for annual reporting periods in fiscal years beginning after December 15, 2024. We are currently evaluating the impact that the adoption of ASU 2023-09 will have on our consolidated financial statements and disclosures.

In November 2024, the FASB issued ASU 2024-03, Disaggregation of Income Statement Expenses. ASU 2024-03 requires additional disclosure of specific types of expenses included in the expense captions presented on the face of the income statement as well as disclosures about selling expenses. ASU 2024-03 is effective for fiscal years beginning after December

15, 2026, and interim periods beginning after December 15, 2027, with early adoption permitted. The requirements will be applied prospectively with the option for retrospective application. We are currently evaluating the impact that the adoption of ASU 2024-03 will have on our consolidated financial statements and disclosures.

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